Question: A microwave oven uses 2.4 GHz electromagnetic waves. A cell phone uses electromagnetic waves at a slightly lower 1.9 GHz frequency. What can you say

A microwave oven uses 2.4 GHz electromagnetic waves. A cell phone uses electromagnetic waves at a slightly lower 1.9 GHz frequency. What can you say about the wavelengths of the two?

A. The waves from the oven have a longer wavelength.

B. The waves from the phone have a longer wavelength.

C. The waves from the oven and the phone have the same wavelength.

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